Erosion

December 5, 2014--Only 60 years of farming left if soil degradation continues (Reuters)

Generating three centimeters of top soil takes 1,000 years, and if current rates of degradation continue all of the world's top soil could be gone within 60 years, a senior UN official said on Friday.


November 5, 2014--Why sand is disappearing (New York Times)

To those of us who visit beaches only in summer, they seem as permanent a part of our natural heritage as the Rocky Mountains and the Great Lakes. But shore dwellers know differently. Beaches are the most transitory of landscapes, and sand beaches the most vulnerable of all.


January 5, 2014--Report: Great Lakes only region to gain wetlands (Wall Street Journal)

The eight-state Great Lakes region — extending from western New York to eastern Minnesota— was the only section of the U.S. where coastal wetland acreage increased during a five-year period when scientists took extensive measurements with satellites and field photography.


October 28, 2013--Western flash floods, debris flows increase with worsening wildfire seasons (Water World)

Western U.S. states are facing an increase in flash floods and debris flows in the wake of longer and worsening wildfire seasons. These runaway torrents made of rock, mud and water can barrel down mountain channels with little or no warning and destroy roads, homes and anything else in their path.


July 19, 2013--Feds launch Colorado project to reduce watershed damage from fires (Denver Business Journal)

The U.S. departments of the Interior and Agriculture have launched a pilot project in Colorado aimed at reducing the risk of wildfires and associated damage to watersheds in the West. The agreement was signed Friday by Agriculture Secretary Tom Vilsack and Interior Secretary Sally Jewell in a ceremony at Horsetooth Reservoir outside of Fort Collins.


March 26, 2013--EPA finds 55 percent of rivers and streams in US in poor condition; situation worse in East (Washington Post)

More than half of the country’s rivers and streams are in poor biological health, unable to support healthy populations of aquatic insects and other creatures, according to a new nationwide survey released Tuesday. The Environmental Protection Agency sampled nearly 2,000 locations in 2008 and 2009 — from rivers as large as the Mississippi River to streams small enough for wading.


June 27, 2012--Dying trees in southwest set stage for erosion, water loss in Colorado River (Science Daily)

New research concludes that a one-two punch of drought and mountain pine beetle attacks are the primary forces that have killed more than 2.5 million acres of pinyon pine and juniper trees in the American Southwest during the past 15 years, setting the stage for further ecological disruption.


January 20, 2010--Foresters fret about lodgepole pine (Durango Telegraph)

The die-off for lodgepole pine has mostly ended in Colorado. Now trees killed by bark beetles are falling en masse and creating new worries about catastrophic fires. The Forest Service estimates 98,000 lodgepole pine trees fall daily, primarily in Colorado. The epidemic began in 1996, and several years ago officials estimated 90 percent of the pine trees would die within five years.


October 3, 2009--Prof. discusses the trouble with phosphorous (Aspen Daily News)

Oil ain’t the only finite resource we’re using up on Earth. Phosphorus, a nutrient essential to farming, is also non-renewable. On Thursday, during a weeklong conference on the phosphorus conundrum held by the Aspen Global Change Center, an expert said he believed phosphorus reserves will run out in the next 50 to 100 years. To best manage what’s left of it, said Dr.


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